Philco Model 60 coils - Printable Version
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RE: Philco Model 60 coils - Chuck Schwark - 04-02-2012
(04-02-2012, 02:39 PM)sjhs1962 Wrote: On the antena coil, the primary is the inserted coil inside the tube and the secondary has the three taps. I am wondering if it is necessary to rewind the .7 sw coil since it doesn't function for the most part?
It's part of the tuned circuit and alignment of the bands will be off with out that inductance.
Chuck
RE: Philco Model 60 coils - CrumblingWires - 04-05-2012
Hey sjhs1962,
Check out this youtube video series. 60 chassis restoration 101, by one of the BEST.
http://www.youtube.com/watch?v=xSpm5KfDWNo&feature=plcp&context=C47275b0VDvjVQa1PpcFM_a09JoF9sYleb9dEfMqgA7rafV1nRbDY%3D
14 part video everything you wanted to know about 60 series chassis. I have watched this through, maybe 3 times now & learn something new each time. You master this chassis (Philco's most common) & all others don't look so daunting.
Part 9 maybe be the most interest to your problem.
http://www.youtube.com/watch?v=TAjrJ8Kn5c8&feature=plcp&context=C48868faVDvjVQa1PpcFM_a09JoF9sYiozZS9GKGFCH6diAgk753g%3D
Lochmiester also has a set of videos out there on a 16B & a 116 chassis. Lot's of good info to follow along with.
I never get tired of watching these guys & forever in their debt for helping this Noob learn.
Hope this helps,
Lloyd
___________________________________________________________
Ooohhh Noooo, What’s the Matter NOW?? It WAS Working GREAT before I “FIXED
IT”!!
RE: Philco Model 60 coils - Bob Andersen - 04-05-2012
Thanks, I'm glad you enjoyed the series. I spent way more time and effort than normal on this set because I wanted to try out just about every tip and trick I had read about. Replicating dogbone resistors for example. Absolutely not necessary, but now I feel ready to take on rarer and more complicated sets
RE: Philco Model 60 coils - sjhs1962 - 04-11-2012
Thanks for help and comments. I rewound primary of osc coil and had one station only across the dial. Then I worked with the trimmers and got several stations mainly at the higher frequencies. I then did an alignment per the instructions. I am a newbe but I think I did it correctly. And suprise...I lost the stations I had. So I guess I'll try to retune station by adjusting the trimmers. Any thoughts?
RE: Philco Model 60 coils - Bob Andersen - 04-12-2012
If you're only getting one station across the dial, it sounds to me like the oscillator isn't running. Can you check the voltages or put a scope on the 6A7 ?
RE: Philco Model 60 coils - sjhs1962 - 04-12-2012
Banersen: I also appreciate your videos...great job. Now getting stations across the dial. I could use a bit more volume on the lower side and in general. My voltages are higher than normal, about 330 vdc on the plates, but doesn't seem to be a problem so far??? The key was adjusting the trimmers which were critical. My attempt at alignment was not too successful and I may try it again. I had the DDM on the voice coil, perhaps I try the plate of the output tube.
RE: Philco Model 60 coils - Bob Andersen - 04-12-2012
Cool. I imagine using a DMM can be a bit tricky when peaking coils versus an analog meter.
RE: Philco Model 60 coils - sjhs1962 - 04-18-2012
Well both of my model 60' s are working. However, one of the speakers doesn't work due to bad output transformer. I believe there is a fix using and cap and resistor. Anybody point me in the right direction? Thanks.
RE: Philco Model 60 coils - Radioroslyn - 04-18-2012
No you will need to replace the transformer. Your looking for a 7000 ohm to 4 ohm transformer.
Terry
RE: Philco Model 60 coils - 37fordcab - 05-10-2012
(03-21-2012, 07:38 PM)Ron Ramirez Wrote: And make sure that oscillator feedback winding is wound counterclockwise!
Ron I got the coil re wound. Is 34 wire OK and 17 turns CCW. Ive got the radio working but NO stations from 1170 down. Not any static or anything??
John
RE: Philco Model 60 coils - Radioroslyn - 05-10-2012
Sounds like you need a few more turns on the feedback winding. Did you count 17 when you removed it?
Terry